Anorexia nervosa is an eating disorder characterized by a person's distorted image of her body. An extremely thin person may view herself as being overweight. People who suffer from this disorder become obsessed with dieting and weight loss.
Symptoms
Signs of anorexia include a thin appearance or sudden weight loss, preoccupation with counting calories, excessive exercising, dissatisfaction with appearance and fear of gaining weight.
Causes
There are biological, social and psychological factors that may play a role in the development of anorexia nervosa. These factors include genetic predisposition, brain chemistry, social pressures and stressful life events.
Risk Factors
People who suffer from low self-esteem, are perfectionists or have been victims of childhood sexual abuse may have an increased risk of developing anorexia nervosa, as well as those with a family history of eating disorders.
Effects
Anorexia nervosa can produce several physical effects such as weakness, loss of energy, feeling cold, constipation, insomnia, dry skin, headaches and fainting.
Complications
The effects of anorexia nervosa can lead to several complications, including delayed puberty, cessation of menstruation, hair loss, low heart rate and blood pressure, bone loss, dehydration, depression and even suicidal tendencies.
Statistics
According to the American Psychiatric Association, approximately 90 to 95 percent of people who suffer from anorexia nervosa are female.
